HS 2931 – Other organo-inorganic compounds.
Tariff data as of T2026-2, effective Sept 1, 2026, last verified Oct 21, 2026
Other organo-inorganic compounds.
Subheadings
Child tariff lines and MFN rates
| HS code | Description | MFN rate |
|---|---|---|
| 2931-10 – Tetramethyl lead and tetraethyl lead | MFN Free | |
| 2931-10-00-00 | Tetramethyl lead and tetraethyl lead | Free |
| 2931-20 – Tibutyltin compounds | MFN Free | |
| 2931-20-00-00 | Tibutyltin compounds | Free |
| 2931-41 – Dimethyl methylphosphonate | MFN Free | |
| 2931-41-00-00 | Dimethyl methylphosphonate | Free |
| 2931-42 – Dimethyl propylphosphonate | MFN Free | |
| 2931-42-00-00 | Dimethyl propylphosphonate | Free |
| 2931-43 – Diethyl ethylphosphonate | MFN Free | |
| 2931-43-00-00 | Diethyl ethylphosphonate | Free |
| 2931-44 – Methylphosphonic acid | MFN Free | |
| 2931-44-00-00 | Methylphosphonic acid | Free |
| 2931-45 – Salt of methylphosphonic acid and (aminoiminomethyl)urea (1 : 1) | MFN Free | |
| 2931-45-00-00 | Salt of methylphosphonic acid and (aminoiminomethyl)urea (1 : 1) | Free |
| 2931-46 – 2,4,6-Tripropyl-1,3,5,2,4,6-trioxatriphosphinane 2,4,6-trioxide | MFN Free | |
| 2931-46-00-00 | 2,4,6-Tripropyl-1,3,5,2,4,6-trioxatriphosphinane 2,4,6-trioxide | Free |
| 2931-47 – (5-Ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphinan-5-yl) methyl methyl methylphosphonate | MFN Free | |
| 2931-47-00-00 | (5-Ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphinan-5-yl) methyl methyl methylphosphonate | Free |
| 2931-48 – 3,9-Dimethyl-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5] undecane 3,9-dioxide | MFN Free | |
| 2931-48-00-00 | 3,9-Dimethyl-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5] undecane 3,9-dioxide | Free |
| 2931-49 – Other | MFN Free | |
| 2931-49-00-00 | 2931-49-00-00 | Free |
| 2931-49-00-10 | Butyl methylphosphinate | Free |
| 2931-49-00-20 | Bis(1-methylpentyl) methylphosphonate | Free |
| 2931-49-00-91 | Containing a phosphorus atom to which one methyl, ethyl, N-propyl or isopropyl group is bonded but no further carbon atoms | Free |
| 2931-49-00-99 | Other | Free |
| 2931-51 – Methylphosphonic dichloride | MFN Free | |
| 2931-51-00-00 | Methylphosphonic dichloride | Free |
| 2931-52 – Propylphosphonic dichloride | MFN Free | |
| 2931-52-00-00 | Propylphosphonic dichloride | Free |
| 2931-53 – O-(3-chloropropyl) O-[4-nitro-3-(trifluoromethyl)phenyl] methylphosphonothionate | MFN Free | |
| 2931-53-00-00 | O-(3-chloropropyl) O-[4-nitro-3-(trifluoromethyl)phenyl] methylphosphonothionate | Free |
| 2931-54 – Trichlorfon (ISO) | MFN Free | |
| 2931-54-00-00 | Trichlorfon (ISO) | Free |
| 2931-59 – Other | MFN Free | |
| 2931-59-00-00 | 2931-59-00-00 | Free |
| 2931-59-00-10 | P-Alkyl (<=C10, incl. cycloalkyl) N-(1-(dialkyl (<=C10, incl. cycloalkyl) amino))alkylidene (H or <=C10, incl. cycloalkyl) phosphonamidic fluorides and corre... | Free |
| 2931-59-00-20 | Methyl-(bis(diethylamino)methylene)phosphonamidofluoridate | Free |
| 2931-59-00-91 | Containing a phosphorus atom to which one methyl, ethyl, N-propyl or isopropyl group is bonded but no further carbon atoms | Free |
| 2931-59-00-99 | Other | Free |
| 2931-90 – Other | MFN Free | |
| 2931-90-00-10 | Triethylaluminum | Free |
| 2931-90-00-20 | N-(Phosphonomethyl)glycine and its salts | Free |
| 2931-90-00-30 | Organo-silicon compounds | Free |
| 2931-90-00-90 | Other | Free |
Top importers in this heading
46 Canadian companies imported goods under heading 29.31 according to the CBSA Canadian Importers Database, 2023 data.
Most frequent importers
- BAKER HUGHES CANADA COMPANY - Alberta - 2 codes
- HEXION CANADA INC. - Alberta - 2 codes
- NALCO CANADA ULC - Ontario - 2 codes
- SILTECH CORPORATION - Ontario - 2 codes
- 3313045 NOVA SCOTIA COMPANY - Ontario - 1 codes
- ALBEMARLE CHEMICAL CANADA LTD. - Alberta - 1 codes
- ARKON SOLUTIONS CORP. - Alberta - 1 codes
- ASPHALT ADDITIVE CANADA INC. - Alberta - 1 codes
- AZELIS CANADA INC. - Quebec - 1 codes
- BRENNTAG CANADA INC. - Ontario - 1 codes